The picture of this male Northern Cardinal was taken at the New York Botancial Garden. The picture of this male Northern Cardinal was taken with the CANON EOS7D with the CANON 100-400mm lens.
I am so happy to see the Trees Swallows back at Jamaica Bay National Wildlife Refuge. They add a delightful spriit to the refuge.
The blues, greens and other iridescent variations in birds arise from the physical presence of minute structures on the surface of the feathers which reflect only one wavelength of light.